Path: Add `ShapeName` property to ToolBit objects
Path: Add `ShapeName` property to ToolBit objects

The new `ShapeName` is the name of the FreeCAD shape file containing the 3D body of the cutter.
We might want to change the source of the `ShapeName` to the name of the first Body object in the shape file, rather than the name of the file itself.
Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master